1
|
Salas-Orozco MF, Lorenzo-Leal AC, de Alba Montero I, Marín NP, Santana MAC, Bach H. Mechanism of escape from the antibacterial activity of metal-based nanoparticles in clinically relevant bacteria: A systematic review. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2024; 55:102715. [PMID: 37907198 DOI: 10.1016/j.nano.2023.102715] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/05/2023] [Accepted: 10/05/2023] [Indexed: 11/02/2023]
Abstract
The emergency of antibiotic-resistant bacteria in severe infections is increasing, especially in nosocomial environments. The ESKAPE group is of special importance in the groups of multi-resistant bacteria due to its high capacity to generate resistance to antibiotics and bactericides. Therefore, metal-based nanomaterials are an attractive alternative to combat them because they have been demonstrated to damage biomolecules in the bacterial cells. However, there is a concern about bacteria developing resistance to NPs and their harmful effects due to environmental accumulation. Therefore, this systematic review aims to report the clinically relevant bacteria that have developed resistance to the NPs. According to the results of this systematic review, various mechanisms to counteract the antimicrobial activity of various NP types have been proposed. These mechanisms can be grouped into the following categories: production of extracellular compounds, metal efflux pumps, ROS response, genetic changes, DNA repair, adaptative morphogenesis, and changes in the plasma membrane.
Collapse
Affiliation(s)
- Marco Felipe Salas-Orozco
- Facultad de Estomatología, Doctorado en Ciencias Odontológicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico.
| | - Ana Cecilia Lorenzo-Leal
- Division of Infectious Diseases, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Nuria Patiño Marín
- Facultad de Estomatología, Laboratorio de Investigación Clinica, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | - Miguel Angel Casillas Santana
- Maestría en Estomatología con Opcion Terminal en Ortodoncia, Facultad de Estomatología, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Horacio Bach
- Division of Infectious Diseases, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
| |
Collapse
|
2
|
Chen N, Jiang C. Antimicrobial peptides: Structure, mechanism, and modification. Eur J Med Chem 2023; 255:115377. [PMID: 37099837 DOI: 10.1016/j.ejmech.2023.115377] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/03/2023] [Accepted: 04/11/2023] [Indexed: 04/28/2023]
Affiliation(s)
- Na Chen
- School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China
| | - Cheng Jiang
- School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing, 211198, China.
| |
Collapse
|
3
|
Du C, Fikhman DA, Persaud D, Monroe MBB. Dual Burst and Sustained Release of p-Coumaric Acid from Shape Memory Polymer Foams for Polymicrobial Infection Prevention in Trauma-Related Hemorrhagic Wounds. ACS APPLIED MATERIALS & INTERFACES 2023; 15:24228-24243. [PMID: 37186803 DOI: 10.1021/acsami.3c04392] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Hemorrhage is the primary cause of trauma-related death. Of patients that survive, polymicrobial infection occurs in 39% of traumatic wounds within a week of injury. Moreover, traumatic wounds are susceptible to hospital-acquired and drug-resistant bacterial infections. Thus, hemostatic dressings with antimicrobial properties could reduce morbidity and mortality to enhance traumatic wound healing. To that end, p-coumaric acid (PCA) was incorporated into hemostatic shape memory polymer foams by two mechanisms (chemical and physical) to produce dual PCA (DPCA) foams. DPCA foams demonstrated excellent antimicrobial and antibiofilm properties against native Escherichia coli, Staphylococcus aureus, and Staphylococcus epidermidis; co-cultures of E. coli and S. aureus; and drug-resistant S. aureus and S. epidermidis at short (1 h) and long (7 days) time points. Resistance against biofilm formation on the sample surfaces was also observed. In ex vivo experiments in a porcine skin wound model, DPCA foams exhibited similarly high antimicrobial properties as those observed in vitro, indicating that PCA was released from the DPCA foam to successfully inhibit bacterial growth. DPCA foams consistently showed improved antimicrobial properties relative to those of clinical control foams containing silver nanoparticles (AgNPs) against single and mixed species bacteria, single and mixed species biofilms, and bacteria in the ex vivo wound model. This system could allow for physically incorporated PCA to first be released into traumatic wounds directly after application for instant wound disinfection. Then, more tightly tethered PCA can be continuously released into the wound for up to 7 days to kill additional bacteria and protect against biofilms.
Collapse
Affiliation(s)
- Changling Du
- Department of Biomedical and Chemical Engineering, Bioinspired Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - David Anthony Fikhman
- Department of Biomedical and Chemical Engineering, Bioinspired Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Devanand Persaud
- Department of Biomedical and Chemical Engineering, Bioinspired Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Mary Beth Browning Monroe
- Department of Biomedical and Chemical Engineering, Bioinspired Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| |
Collapse
|
4
|
Korzekwa K, Kędziora A, Stańczykiewicz B, Bugla-Płoskońska G, Wojnicz D. Benefits of Usage of Immobilized Silver Nanoparticles as Pseudomonas aeruginosa Antibiofilm Factors. Int J Mol Sci 2021; 23:284. [PMID: 35008720 PMCID: PMC8745484 DOI: 10.3390/ijms23010284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/17/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to assess the beneficial inhibitory effect of silver nanoparticles immobilized on SiO2 or TiO2 on biofilm formation by Pseudomonas aeruginosa-one of the most dangerous pathogens isolated from urine and bronchoalveolar lavage fluid of patients hospitalized in intensive care units. Pure and silver doped nanoparticles of SiO2 and TiO2 were prepared using a novel modified sol-gel method. Ten clinical strains of P. aeruginosa and the reference PAO1 strain were used. The minimal inhibitory concentration (MIC) was determined by the broth microdilution method. The minimal biofilm inhibitory concentration (MBIC) and biofilm formation were assessed by colorimetric assay. Bacterial enumeration was used to assess the viability of bacteria in the biofilm. Silver nanoparticles immobilized on the SiO2 and TiO2 indicated high antibacterial efficacy against P. aeruginosa planktonic and biofilm cultures. TiO2/Ag0 showed a better bactericidal effect than SiO2/Ag0. Our results indicate that the inorganic compounds (SiO2, TiO2) after nanotechnological modification may be successfully used as antibacterial agents against multidrug-resistant P. aeruginosa strains.
Collapse
Affiliation(s)
- Kamila Korzekwa
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 50-137 Wroclaw, Poland; (A.K.); (G.B.-P.)
| | - Anna Kędziora
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 50-137 Wroclaw, Poland; (A.K.); (G.B.-P.)
| | | | - Gabriela Bugla-Płoskońska
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 50-137 Wroclaw, Poland; (A.K.); (G.B.-P.)
| | - Dorota Wojnicz
- Department of Biology and Medical Parasitology, Wroclaw Medical University, 50-345 Wroclaw, Poland
| |
Collapse
|
5
|
Bäumler W, Eckl D, Holzmann T, Schneider-Brachert W. Antimicrobial coatings for environmental surfaces in hospitals: a potential new pillar for prevention strategies in hygiene. Crit Rev Microbiol 2021; 48:531-564. [PMID: 34699296 DOI: 10.1080/1040841x.2021.1991271] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Recent reports provide evidence that contaminated healthcare environments represent major sources for the acquisition and transmission of pathogens. Antimicrobial coatings (AMC) may permanently and autonomously reduce the contamination of such environmental surfaces complementing standard hygiene procedures. This review provides an overview of the current status of AMC and the demands to enable a rational application of AMC in health care settings. Firstly, a suitable laboratory test norm is required that adequately quantifies the efficacy of AMC. In particular, the frequently used wet testing (e.g. ISO 22196) must be replaced by testing under realistic, dry surface conditions. Secondly, field studies should be mandatory to provide evidence for antimicrobial efficacy under real-life conditions. The antimicrobial efficacy should be correlated to the rate of nosocomial transmission at least. Thirdly, the respective AMC technology should not add additional bacterial resistance development induced by the biocidal agents and co- or cross-resistance with antibiotic substances. Lastly, the biocidal substances used in AMC should be safe for humans and the environment. These measures should help to achieve a broader acceptance for AMC in healthcare settings and beyond. Technologies like the photodynamic approach already fulfil most of these AMC requirements.
Collapse
Affiliation(s)
- Wolfgang Bäumler
- Department of Dermatology, University Hospital, Regensburg, Germany
| | - Daniel Eckl
- Department of Microbiology, University of Regensburg, Regensburg, Germany
| | - Thomas Holzmann
- Department of Infection Control and Infectious Diseases, University Hospital, Regensburg, Germany
| | - Wulf Schneider-Brachert
- Department of Infection Control and Infectious Diseases, University Hospital, Regensburg, Germany
| |
Collapse
|
6
|
Villapún VM, Balacco DL, Webber MA, Hall T, Lowther M, Addison O, Kuehne SA, Grover LM, Cox SC. Repeated exposure of nosocomial pathogens to silver does not select for silver resistance but does impact ciprofloxacin susceptibility. Acta Biomater 2021; 134:760-773. [PMID: 34329788 DOI: 10.1016/j.actbio.2021.07.056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 07/16/2021] [Accepted: 07/22/2021] [Indexed: 12/25/2022]
Abstract
The rise of antimicrobial resistant bacteria coupled with a void in antibiotic development marks Antimicrobial Resistance as one of the biggest current threats to modern medicine. Antimicrobial metals are being developed and used as alternative anti-infectives, however, the existence of known resistance mechanisms and limited data regarding bacterial responses to long-term metal exposure are barriers to widespread implementation. In this study, a panel of reference and clinical strains of major nosocomial pathogens were subjected to serial dosage cycles of silver and ciprofloxacin. Populations exposed to silver initially showed no change in sensitivity, however, increasingly susceptibility was observed after the 25th cycle. A control experiment with ciprofloxacin revealed a selection for resistance over time, with silver treated bacteria showing faster adaptation. Morphological analysis revealed filamentation in Gram negative species suggesting membrane perturbation, while sequencing of isolated strains identified mutations in numerous genes. These included those encoding for efflux systems, chemosensory systems, stress responses, biofilm formation and respiratory chain processes, although no consistent locus was identified that correlated with silver sensitivity. These results suggest that de novo silver resistance is hard to select in a range of nosocomial pathogens, although silver exposure may detrimentally impact sensitivity to antibiotics in the long term. STATEMENT OF SIGNIFICANCE: The adaptability of microbial life continuously calls for the development of novel antibiotic molecules, however, the cost and risk associated with their discovery have led to a drying up in the pipeline, causing antimicrobial resistance (AMR) to be a major threat to healthcare. From all available strategies, antimicrobial metals and, more specifically, silver showcase large bactericidal spectrum and limited toxic effect which coupled with a large range of processes available for their delivery made these materials as a clear candidate to tackle AMR. Previous reports have shown the ability of this metal to enact a synergistic effect with other antimicrobial therapies, nevertheless, the discovery of Ag resistance mechanisms since the early 70s and limited knowledge on the long term influence of silver on AMR poses a threat to their applicability. The present study provides quantitative data on the influence of silver based therapies on AMR development for a panel of reference and clinical strains of major nosocomial pathogens, revealing that prolonged silver exposure may detrimentally impact sensitivity to antibiotics.
Collapse
Affiliation(s)
- Victor M Villapún
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom.
| | - Dario L Balacco
- School of Dentistry, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Mark A Webber
- Quadram Institute Bioscience, Norwich Research Park, NR4 7UQ, United Kingdom; Norwich Medical School, University of East Anglia. Norwich Research Park, NR4 7TJ, United Kingdom
| | - Thomas Hall
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Morgan Lowther
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Owen Addison
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, SE1 9RT, United Kingdom
| | - Sarah A Kuehne
- School of Dentistry, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Liam M Grover
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom
| | - Sophie C Cox
- School of Chemical Engineering, University of Birmingham, Edgbaston B15 2TT, United Kingdom.
| |
Collapse
|
7
|
Gerasymchuk Y, Tahershamsi L, Tomala R, Wedzynska A, Chernii V, Tretyakova I, Korona-Glowniak I, Rajtar B, Malm A, Piatek D, Lukowiak A. Composites based on graphite oxide and zirconium phthalocyanines with aromatic amino acids as photoactive materials. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01731-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
AbstractThis article is a part of a scientific project focused on obtaining a new type of composite materials that are characterized by singlet oxygen generation upon irradiation with red light, which can be used as antibacterial agents. The composite material is nanoscale graphite oxide (GO) particles covalently bonded to an axially substituted zirconium phthalocyanine complex. For this purpose, two phthalocyanine zirconium complexes, axially mono-substituted with 4-aminosalicylic or 4-aminophthalic acids, were prepared and measured in terms of structure, morphology, and spectroscopic properties. The zirconium phthalocyanines are photosensitizers, and the axial ligands are bridging links connecting the complexes to the GO carrier (due to their terminal amino groups and carboxyl groups, respectively). The axial ligand in zirconium phthalocyanine complexes has a strong influence on the stability and optical properties of composite materials and, consequently, on reactive oxygen species (ROS) generation. In this paper, the effect of composite components (4-aminophthalato or 4-aminosalicylato substituted zirconium phthalocyanine complex as a photosensitizer and graphite oxide as a carrier and modulator of the action of active components) on ROS generation for potential antibacterial use is discussed.
Collapse
|
8
|
Alotaibi BS, Khan M, Shamim S. Unraveling the Underlying Heavy Metal Detoxification Mechanisms of Bacillus Species. Microorganisms 2021; 9:1628. [PMID: 34442707 PMCID: PMC8402239 DOI: 10.3390/microorganisms9081628] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/08/2021] [Accepted: 07/13/2021] [Indexed: 12/26/2022] Open
Abstract
The rise of anthropogenic activities has resulted in the increasing release of various contaminants into the environment, jeopardizing fragile ecosystems in the process. Heavy metals are one of the major pollutants that contribute to the escalating problem of environmental pollution, being primarily introduced in sensitive ecological habitats through industrial effluents, wastewater, as well as sewage of various industries. Where heavy metals like zinc, copper, manganese, and nickel serve key roles in regulating different biological processes in living systems, many heavy metals can be toxic even at low concentrations, such as mercury, arsenic, cadmium, chromium, and lead, and can accumulate in intricate food chains resulting in health concerns. Over the years, many physical and chemical methods of heavy metal removal have essentially been investigated, but their disadvantages like the generation of chemical waste, complex downstream processing, and the uneconomical cost of both methods, have rendered them inefficient,. Since then, microbial bioremediation, particularly the use of bacteria, has gained attention due to the feasibility and efficiency of using them in removing heavy metals from contaminated environments. Bacteria have several methods of processing heavy metals through general resistance mechanisms, biosorption, adsorption, and efflux mechanisms. Bacillus spp. are model Gram-positive bacteria that have been studied extensively for their biosorption abilities and molecular mechanisms that enable their survival as well as their ability to remove and detoxify heavy metals. This review aims to highlight the molecular methods of Bacillus spp. in removing various heavy metals ions from contaminated environments.
Collapse
Affiliation(s)
- Badriyah Shadid Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Maryam Khan
- Institute of Molecular Biology and Biotechnology (IMBB), Defence Road Campus, The University of Lahore, Lahore 55150, Pakistan;
| | - Saba Shamim
- Institute of Molecular Biology and Biotechnology (IMBB), Defence Road Campus, The University of Lahore, Lahore 55150, Pakistan;
| |
Collapse
|
9
|
Morka KD, Wernecki M, Kędziora A, Książczyk M, Dudek B, Gerasymchuk Y, Lukowiak A, Bystroń J, Bugla-Płoskońska G. The Impact of Graphite Oxide Nanocomposites on the Antibacterial Activity of Serum. Int J Mol Sci 2021; 22:7386. [PMID: 34299005 PMCID: PMC8304721 DOI: 10.3390/ijms22147386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 12/21/2022] Open
Abstract
Nanoparticles can interact with the complement system and modulate the inflammatory response. The effect of these interactions on the complement activity strongly depends on physicochemical properties of nanoparticles. The interactions of silver nanoparticles with serum proteins (particularly with the complement system components) have the potential to significantly affect the antibacterial activity of serum, with serious implications for human health. The aim of the study was to assess the influence of graphite oxide (GO) nanocomposites (GO, GO-PcZr(Lys)2-Ag, GO-Ag, GO-PcZr(Lys)2) on the antibacterial activity of normal human serum (NHS), serum activity against bacteria isolated from alveoli treated with nanocomposites, and nanocomposite sensitivity of bacteria exposed to serum in vitro (using normal human serum). Additionally, the in vivo cytotoxic effect of the GO compounds was determined with application of a Galleria mellonella larvae model. GO-PcZr(Lys)2, without IR irradiation enhance the antimicrobial efficacy of the human serum. IR irradiation enhances bactericidal activity of serum in the case of the GO-PcZr(Lys)2-Ag sample. Bacteria exposed to nanocomposites become more sensitive to the action of serum. Bacteria exposed to serum become more sensitive to the GO-Ag sample. None of the tested GO nanocomposites displayed a cytotoxicity towards larvae.
Collapse
Affiliation(s)
- Katarzyna Dorota Morka
- Department of Food Hygiene and Consumer Health Protection, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, C. K. Norwida 31, 50-375 Wrocław, Poland;
| | - Maciej Wernecki
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Anna Kędziora
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Marta Książczyk
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Bartłomiej Dudek
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| | - Yuriy Gerasymchuk
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-422 Wrocław, Poland; (Y.G.); (A.L.)
| | - Anna Lukowiak
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okolna 2, 50-422 Wrocław, Poland; (Y.G.); (A.L.)
| | - Jarosław Bystroń
- Department of Food Hygiene and Consumer Health Protection, Faculty of Veterinary Medicine, University of Environmental and Life Sciences, C. K. Norwida 31, 50-375 Wrocław, Poland;
| | - Gabriela Bugla-Płoskońska
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, S. Przybyszewskiego 63/77, 51-148 Wroclaw, Poland; (M.W.); (A.K.); (M.K.); (B.D.)
| |
Collapse
|
10
|
Bruna T, Maldonado-Bravo F, Jara P, Caro N. Silver Nanoparticles and Their Antibacterial Applications. Int J Mol Sci 2021; 22:7202. [PMID: 34281254 PMCID: PMC8268496 DOI: 10.3390/ijms22137202] [Citation(s) in RCA: 361] [Impact Index Per Article: 120.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/02/2021] [Accepted: 07/02/2021] [Indexed: 12/22/2022] Open
Abstract
Silver nanoparticles (AgNPs) have been imposed as an excellent antimicrobial agent being able to combat bacteria in vitro and in vivo causing infections. The antibacterial capacity of AgNPs covers Gram-negative and Gram-positive bacteria, including multidrug resistant strains. AgNPs exhibit multiple and simultaneous mechanisms of action and in combination with antibacterial agents as organic compounds or antibiotics it has shown synergistic effect against pathogens bacteria such as Escherichia coli and Staphylococcus aureus. The characteristics of silver nanoparticles make them suitable for their application in medical and healthcare products where they may treat infections or prevent them efficiently. With the urgent need for new efficient antibacterial agents, this review aims to establish factors affecting antibacterial and cytotoxic effects of silver nanoparticles, as well as to expose the advantages of using AgNPs as new antibacterial agents in combination with antibiotic, which will reduce the dosage needed and prevent secondary effects associated to both.
Collapse
Affiliation(s)
- Tamara Bruna
- Centro de Investigación Austral Biotech, Facultad de Ciencias, Universidad Santo Tomás, Avenida Ejército 146, Santiago 8320000, Chile;
| | - Francisca Maldonado-Bravo
- Centro de Investigación Austral Biotech, Facultad de Ciencias, Universidad Santo Tomás, Avenida Ejército 146, Santiago 8320000, Chile;
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile;
| | - Paul Jara
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile;
| | - Nelson Caro
- Centro de Investigación Austral Biotech, Facultad de Ciencias, Universidad Santo Tomás, Avenida Ejército 146, Santiago 8320000, Chile;
| |
Collapse
|
11
|
Kędziora A, Wieczorek R, Speruda M, Matolínová I, Goszczyński TM, Litwin I, Matolín V, Bugla-Płoskońska G. Comparison of Antibacterial Mode of Action of Silver Ions and Silver Nanoformulations With Different Physico-Chemical Properties: Experimental and Computational Studies. Front Microbiol 2021; 12:659614. [PMID: 34276595 PMCID: PMC8281304 DOI: 10.3389/fmicb.2021.659614] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/02/2021] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to compare the antibacterial mode of action of silver ions (Ag+) and selected silver nanoformulations against E. coli strains (E. coli J53, Escherichia coli BW25113 and its derivatives: Δ ompA, Δ ompC, Δ ompF, Δ ompR, ompRG596AcusSG1130A, cusSG1130A). In this research we used various experimental methods and techniques such as determination of the minimal inhibitory concentration, flow cytometry, scanning electron microscopy, circular dichroism as well as computational methods of theoretical chemistry. Thanks to the processing of bacteria and silver samples (ions and nanoformulations), we were able to determine the bacterial sensitivity to silver samples, detect reactive oxygen species (ROS) in the bacterial cells, visualize the interaction of silver samples with the bacterial cells, and identify their interactions with proteins. Differences between the mode of action of silver ions and nanoformulations and the action of nanoformulations themselves were revealed. Based on the results of computational methods, we proposed an explanation of the differences in silver-outer protein interaction between silver ions and metallic silver; in general, the Ag0 complexes exhibit weaker interaction than Ag+ ones. Moreover, we identified two gutter-like areas of the inner layer of the ion channel: one more effective, with oxygen-rich side chains; and another one less effective, with nitrogen-rich side chains.
Collapse
Affiliation(s)
- Anna Kędziora
- Department of Microbiology, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | | | - Mateusz Speruda
- Department of Microbiology, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - Iva Matolínová
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
| | - Tomasz M Goszczyński
- Laboratory of Biomedical Chemistry, Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, PAS, Wrocław, Poland
| | - Ireneusz Litwin
- Department of Genetics and Cell Physiology, Faculty of Biological Sciences, University of Wrocław, Wrocław, Poland
| | - Vladimír Matolín
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
| | | |
Collapse
|
12
|
Kędziora A, Speruda M, Wernecki M, Dudek B, Kapczynska K, Krzyżewska E, Rybka J, Bugla-Płoskońska G. How Bacteria Change after Exposure to Silver Nanoformulations: Analysis of the Genome and Outer Membrane Proteome. Pathogens 2021; 10:pathogens10070817. [PMID: 34209937 PMCID: PMC8308822 DOI: 10.3390/pathogens10070817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/21/2021] [Accepted: 06/24/2021] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE the main purpose of this work was to compare the genetic and phenotypic changes of E. coli treated with silver nanoformulations (E. coli BW25113 wt, E. coli BW25113 AgR, E. coli J53, E. coli ATCC 11229 wt, E. coli ATCC 11229 var. S2 and E. coli ATCC 11229 var. S7). Silver, as the metal with promising antibacterial properties, is currently widely used in medicine and the biomedical industry, in both ionic and nanoparticles forms. Silver nanoformulations are usually considered as one type of antibacterial agent, but their physical and chemical properties determine the way of interactions with the bacterial cell, the mode of action, and the bacterial cell response to silver. METHODS the changes in the bacterial genome, resulting from the treatment of bacteria with various silver nanoformulations, were verified by analyzing of genes (selected with mutfunc) and their conservative and non-conservative mutations selected with BLOSUM62. The phenotype was verified using an outer membrane proteome analysis (OMP isolation, 2-DE electrophoresis, and MS protein identification). RESULTS the variety of genetic and phenotypic changes in E. coli strains depends on the type of silver used for bacteria treatment. The most changes were identified in E. coli ATCC 11229 treated with silver nanoformulation signed as S2 (E. coli ATCC 11229 var. S2). We pinpointed 39 genes encoding proteins located in the outer membrane, 40 genes of their regulators, and 22 genes related to other outer membrane structures, such as flagellum, fimbria, lipopolysaccharide (LPS), or exopolysaccharide in this strain. Optical density of OmpC protein in E. coli electropherograms decreased after exposure to silver nanoformulation S7 (noticed in E. coli ATCC 11229 var. S7), and increased after treatment with the other silver nanoformulations (SNF) marked as S2 (noticed in E. coli ATCC 11229 var. S2). Increase of FliC protein optical density was identified in turn after Ag+ treatment (noticed in E.coli AgR). CONCLUSION the results show that silver nanoformulations (SNF) exerts a selective pressure on bacteria causing both conservative and non-conservative mutations. The proteomic approach revealed that the levels of some proteins have changed after treatment with appropriate SNF.
Collapse
Affiliation(s)
- Anna Kędziora
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 51-148 Wroclaw, Poland; (M.S.); (M.W.); (B.D.)
- Correspondence: (A.K.); (G.B.-P.); Tel.: +487-1375-6323 (A.K.)
| | - Mateusz Speruda
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 51-148 Wroclaw, Poland; (M.S.); (M.W.); (B.D.)
| | - Maciej Wernecki
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 51-148 Wroclaw, Poland; (M.S.); (M.W.); (B.D.)
| | - Bartłomiej Dudek
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 51-148 Wroclaw, Poland; (M.S.); (M.W.); (B.D.)
| | - Katarzyna Kapczynska
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland; (K.K.); (E.K.); (J.R.)
| | - Eva Krzyżewska
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland; (K.K.); (E.K.); (J.R.)
| | - Jacek Rybka
- Department of Immunology of Infectious Diseases, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland; (K.K.); (E.K.); (J.R.)
| | - Gabriela Bugla-Płoskońska
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 51-148 Wroclaw, Poland; (M.S.); (M.W.); (B.D.)
- Correspondence: (A.K.); (G.B.-P.); Tel.: +487-1375-6323 (A.K.)
| |
Collapse
|